X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/c368d904fc27d35ae1e533155e2154dc496432e4..93b663b8ccc9f82dd32d492c8a6081a8c75e8419:/wxPython/src/helpers.cpp?ds=sidebyside diff --git a/wxPython/src/helpers.cpp b/wxPython/src/helpers.cpp index 6d0cb21730..18081078e9 100644 --- a/wxPython/src/helpers.cpp +++ b/wxPython/src/helpers.cpp @@ -4,49 +4,71 @@ // // Author: Robin Dunn // -// Created: 7/1/97 +// Created: 1-July-1997 // RCS-ID: $Id$ // Copyright: (c) 1998 by Total Control Software // Licence: wxWindows license ///////////////////////////////////////////////////////////////////////////// -#include // get the correct definition of NULL #undef DEBUG #include -#include "helpers.h" +#include "wx/wxPython/wxPython_int.h" +#include "wx/wxPython/pyistream.h" #ifdef __WXMSW__ #include -#undef FindWindow -#undef GetCharWidth -#undef LoadAccelerators -#undef GetClassInfo -#undef GetClassName +#include +#include #endif #ifdef __WXGTK__ #include #include #include -//#include -//#include -//#include +#endif + +#include +#include +#include -//extern GtkWidget *wxRootWindow; +//---------------------------------------------------------------------- +#if PYTHON_API_VERSION <= 1007 && wxUSE_UNICODE +#error Python must support Unicode to use wxWindows Unicode #endif +//---------------------------------------------------------------------- -//--------------------------------------------------------------------------- +wxPyApp* wxPythonApp = NULL; // Global instance of application object +bool wxPyDoCleanup = False; +bool wxPyDoingCleanup = False; -//wxHashTable* wxPyWindows = NULL; + +#ifdef WXP_WITH_THREAD +struct wxPyThreadState { + unsigned long tid; + PyThreadState* tstate; + int blocked; + + wxPyThreadState(unsigned long _tid=0, PyThreadState* _tstate=NULL) + : tid(_tid), tstate(_tstate), blocked(1) {} +}; + +#include +WX_DECLARE_OBJARRAY(wxPyThreadState, wxPyThreadStateArray); +#include +WX_DEFINE_OBJARRAY(wxPyThreadStateArray); + +wxPyThreadStateArray* wxPyTStates = NULL; +wxMutex* wxPyTMutex = NULL; +#endif -wxPoint wxPyDefaultPosition; //wxDefaultPosition); -wxSize wxPyDefaultSize; //wxDefaultSize); -wxString wxPyEmptyStr(""); +static PyObject* wxPython_dict = NULL; +static PyObject* wxPyAssertionError = NULL; +PyObject* wxPyPtrTypeMap = NULL; #ifdef __WXMSW__ // If building for win32... @@ -60,171 +82,446 @@ BOOL WINAPI DllMain( LPVOID lpvReserved // reserved ) { - wxSetInstance(hinstDLL); - return 1; + // If wxPython is embedded in another wxWindows app then + // the inatance has already been set. + if (! wxGetInstance()) + wxSetInstance(hinstDLL); + return True; } #endif //---------------------------------------------------------------------- -// Class for implementing the wxp main application shell. +// Classes for implementing the wxp main application shell. //---------------------------------------------------------------------- -wxPyApp *wxPythonApp = NULL; // Global instance of application object +IMPLEMENT_ABSTRACT_CLASS(wxPyApp, wxApp); wxPyApp::wxPyApp() { -// printf("**** ctor\n"); + m_assertMode = wxPYAPP_ASSERT_EXCEPTION; + m_startupComplete = False; } + wxPyApp::~wxPyApp() { -// printf("**** dtor\n"); } -// This one isn't acutally called... See __wxStart() -bool wxPyApp::OnInit(void) { - return FALSE; +// This one isn't acutally called... We fake it with _BootstrapApp +bool wxPyApp::OnInit() { + return False; } -int wxPyApp::MainLoop(void) { + +int wxPyApp::MainLoop() { int retval = 0; DeletePendingObjects(); -#ifdef __WXGTK__ - m_initialized = wxTopLevelWindows.GetCount() != 0; -#endif + bool initialized = wxTopLevelWindows.GetCount() != 0; + if (initialized) { + if ( m_exitOnFrameDelete == Later ) { + m_exitOnFrameDelete = Yes; + } - if (Initialized()) { retval = wxApp::MainLoop(); - wxPythonApp->OnExit(); + OnExit(); } return retval; } -//--------------------------------------------------------------------- -//---------------------------------------------------------------------- +bool wxPyApp::OnInitGui() { + bool rval=True; + wxApp::OnInitGui(); // in this case always call the base class version + wxPyBeginBlockThreads(); + if (wxPyCBH_findCallback(m_myInst, "OnInitGui")) + rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()")); + wxPyEndBlockThreads(); + return rval; +} -int WXDLLEXPORT wxEntryStart( int argc, char** argv ); -int WXDLLEXPORT wxEntryInitGui(); -void WXDLLEXPORT wxEntryCleanup(); +int wxPyApp::OnExit() { + int rval=0; + wxPyBeginBlockThreads(); + if (wxPyCBH_findCallback(m_myInst, "OnExit")) + rval = wxPyCBH_callCallback(m_myInst, Py_BuildValue("()")); + wxPyEndBlockThreads(); + wxApp::OnExit(); // in this case always call the base class version + return rval; +} -#ifdef WXP_WITH_THREAD -PyThreadState* wxPyEventThreadState = NULL; -#endif -static char* __nullArgv[1] = { 0 }; +#ifdef __WXDEBUG__ +void wxPyApp::OnAssert(const wxChar *file, + int line, + const wxChar *cond, + const wxChar *msg) { + + // if we're not fully initialized then just log the error + if (! m_startupComplete) { + wxString buf; + buf.Alloc(4096); + buf.Printf(wxT("%s(%d): assert \"%s\" failed"), + file, line, cond); + if (msg != NULL) { + buf += wxT(": "); + buf += msg; + } + wxLogDebug(buf); + return; + } + + // If the OnAssert is overloaded in the Python class then call it... + bool found; + wxPyBeginBlockThreads(); + if ((found = wxPyCBH_findCallback(m_myInst, "OnAssert"))) { + PyObject* fso = wx2PyString(file); + PyObject* cso = wx2PyString(file); + PyObject* mso; + if (msg != NULL) + mso = wx2PyString(file); + else { + mso = Py_None; Py_INCREF(Py_None); + } + wxPyCBH_callCallback(m_myInst, Py_BuildValue("(OiOO)", fso, line, cso, mso)); + Py_DECREF(fso); + Py_DECREF(cso); + Py_DECREF(mso); + } + wxPyEndBlockThreads(); + + // ...otherwise do our own thing with it + if (! found) { + // ignore it? + if (m_assertMode & wxPYAPP_ASSERT_SUPPRESS) + return; + + // turn it into a Python exception? + if (m_assertMode & wxPYAPP_ASSERT_EXCEPTION) { + wxString buf; + buf.Alloc(4096); + buf.Printf(wxT("C++ assertion \"%s\" failed in %s(%d)"), cond, file, line); + if (msg != NULL) { + buf += wxT(": "); + buf += msg; + } + + // set the exception + wxPyBeginBlockThreads(); + PyObject* s = wx2PyString(buf); + PyErr_SetObject(wxPyAssertionError, s); + Py_DECREF(s); + wxPyEndBlockThreads(); -// This is where we pick up the first part of the wxEntry functionality... -// The rest is in __wxStart and __wxCleanup. This function is called when -// wxcmodule is imported. (Before there is a wxApp object.) -void __wxPreStart() -{ -#ifdef WXP_WITH_THREAD - PyEval_InitThreads(); - wxPyEventThreadState = PyThreadState_Get(); + // Now when control returns to whatever API wrapper was called from + // Python it should detect that an exception is set and will return + // NULL, signalling the exception to Python. + } + + // Send it to the normal log destination, but only if + // not _DIALOG because it will call this too + if ( (m_assertMode & wxPYAPP_ASSERT_LOG) && !(m_assertMode & wxPYAPP_ASSERT_DIALOG)) { + wxString buf; + buf.Alloc(4096); + buf.Printf(wxT("%s(%d): assert \"%s\" failed"), + file, line, cond); + if (msg != NULL) { + buf += wxT(": "); + buf += msg; + } + wxLogDebug(buf); + } + + // do the normal wx assert dialog? + if (m_assertMode & wxPYAPP_ASSERT_DIALOG) + wxApp::OnAssert(file, line, cond, msg); + } +} #endif - // Bail out if there is already windows created. This means that the - // toolkit has already been initialized, as in embedding wxPython in - // a C++ wxWindows app. - if (wxTopLevelWindows.Number() > 0) - return; - PyObject* sysargv = PySys_GetObject("argv"); - int argc = PyList_Size(sysargv); - char** argv = new char*[argc+1]; - int x; - for(x=0; x 0) { - PyErr_SetString(PyExc_TypeError, "Only 1 wxApp per process!"); - return NULL; - } +/*static*/ +void wxPyApp::SetMacAboutMenuItemId(long val) { +#ifdef __WXMAC__ + s_macAboutMenuItemId = val; +#endif +} +/*static*/ +void wxPyApp::SetMacPreferencesMenuItemId(long val) { +#ifdef __WXMAC__ + s_macPreferencesMenuItemId = val; +#endif +} - // This is the next part of the wxEntry functionality... - PyObject* sysargv = PySys_GetObject("argv"); - int argc = PyList_Size(sysargv); - char** argv = new char*[argc+1]; - int x; - for(x=0; xargc = argc; - wxPythonApp->argv = argv; +/*static*/ +void wxPyApp::SetMacHelpMenuTitleName(const wxString& val) { +#ifdef __WXMAC__ + s_macHelpMenuTitleName = val; +#endif +} - wxEntryInitGui(); - // Call the Python App's OnInit function - arglist = PyTuple_New(0); - result = PyEval_CallObject(onInitFunc, arglist); - if (!result) { // an exception was raised. - return NULL; +// This finishes the initialization of wxWindows and then calls the OnInit +// that should be present in the derived (Python) class. +void wxPyApp::_BootstrapApp() +{ + bool result; + PyObject* retval = NULL; + PyObject* pyint = NULL; + + + // Get any command-line args passed to this program from the sys module + int argc = 0; + char** argv = NULL; + wxPyBeginBlockThreads(); + PyObject* sysargv = PySys_GetObject("argv"); + if (sysargv != NULL) { + argc = PyList_Size(sysargv); + argv = new char*[argc+1]; + int x; + for(x=0; xSetStartupComplete(True); + + // Call the Python wxApp's OnInit function + if (wxPyCBH_findCallback(m_myInst, "OnInit")) { + + PyObject* method = m_myInst.GetLastFound(); + PyObject* argTuple = PyTuple_New(0); + retval = PyEval_CallObject(method, argTuple); + Py_DECREF(argTuple); + Py_DECREF(method); + if (retval == NULL) + goto error; + + pyint = PyNumber_Int(retval); + if (! pyint) { + PyErr_SetString(PyExc_TypeError, "OnInit should return a boolean value"); + goto error; + } + result = PyInt_AS_LONG(pyint); + } + else { + // Is it okay if there is no OnInit? Probably so... + result = True; + } + + + if (! result) { + PyErr_SetString(PyExc_SystemExit, "OnInit returned False, exiting..."); } -#ifdef __WXGTK__ - wxTheApp->m_initialized = (wxTopLevelWindows.GetCount() > 0); + error: + Py_XDECREF(retval); + Py_XDECREF(pyint); + + wxPyEndBlockThreads(); +}; + +//--------------------------------------------------------------------- +//---------------------------------------------------------------------- + + +#if 0 +static char* wxPyCopyCString(const wxChar* src) +{ + wxWX2MBbuf buff = (wxWX2MBbuf)wxConvCurrent->cWX2MB(src); + size_t len = strlen(buff); + char* dest = new char[len+1]; + strcpy(dest, buff); + return dest; +} + +#if wxUSE_UNICODE +static char* wxPyCopyCString(const char* src) // we need a char version too +{ + size_t len = strlen(src); + char* dest = new char[len+1]; + strcpy(dest, src); + return dest; +} #endif - Py_INCREF(Py_None); - return Py_None; +static wxChar* wxPyCopyWString(const char *src) +{ + //wxMB2WXbuf buff = wxConvCurrent->cMB2WX(src); + wxString str(src, *wxConvCurrent); + return copystring(str); } -void __wxCleanup() { - wxEntryCleanup(); +#if wxUSE_UNICODE +static wxChar* wxPyCopyWString(const wxChar *src) +{ + return copystring(src); } +#endif +#endif +inline const char* dropwx(const char* name) { + if (name[0] == 'w' && name[1] == 'x') + return name+2; + else + return name; +} + +//---------------------------------------------------------------------- -PyObject* wxPython_dict; -PyObject* __wxSetDictionary(PyObject* /* self */, PyObject* args) +// This function is called when the wxc module is imported to do some initial +// setup. (Before there is a wxApp object.) The rest happens in +// wxPyApp::_BootstrapApp +void __wxPyPreStart(PyObject* moduleDict) +{ + +#ifdef __WXMSW__ +// wxCrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF); +#endif + +#ifdef WXP_WITH_THREAD + PyEval_InitThreads(); + wxPyTStates = new wxPyThreadStateArray; + wxPyTMutex = new wxMutex; + + // Save the current (main) thread state in our array + PyThreadState* tstate = wxPyBeginAllowThreads(); + wxPyEndAllowThreads(tstate); +#endif + + // Ensure that the build options in the DLL (or whatever) match this build + wxApp::CheckBuildOptions(WX_BUILD_OPTIONS_SIGNATURE, "wxPython"); + + // Init the stock objects to a non-NULL value so SWIG doesn't create them as None + wxPy_ReinitStockObjects(1); +} + + + +void __wxPyCleanup() { + wxPyDoingCleanup = True; + if (wxPyDoCleanup) { + wxPyDoCleanup = False; + wxEntryCleanup(); + } +#ifdef WXP_WITH_THREAD + delete wxPyTMutex; + wxPyTMutex = NULL; + wxPyTStates->Empty(); + delete wxPyTStates; + wxPyTStates = NULL; +#endif +} + + +// Save a reference to the dictionary of the wx.core module, and inject +// a few more things into it. +PyObject* __wxPySetDictionary(PyObject* /* self */, PyObject* args) { if (!PyArg_ParseTuple(args, "O", &wxPython_dict)) return NULL; if (!PyDict_Check(wxPython_dict)) { - PyErr_SetString(PyExc_TypeError, "_wxSetDictionary must have dictionary object!"); + PyErr_SetString(PyExc_TypeError, "_wxPySetDictionary must have dictionary object!"); return NULL; } + + if (! wxPyPtrTypeMap) + wxPyPtrTypeMap = PyDict_New(); + PyDict_SetItemString(wxPython_dict, "__wxPyPtrTypeMap", wxPyPtrTypeMap); + + // Create an exception object to use for wxASSERTions + wxPyAssertionError = PyErr_NewException("wx.core.PyAssertionError", + PyExc_AssertionError, NULL); + PyDict_SetItemString(wxPython_dict, "PyAssertionError", wxPyAssertionError); + + #ifdef __WXMOTIF__ #define wxPlatform "__WXMOTIF__" #endif -#ifdef __WXQT__ -#define wxPlatform "__WXQT__" +#ifdef __WXX11__ +#define wxPlatform "__WXX11__" #endif #ifdef __WXGTK__ #define wxPlatform "__WXGTK__" @@ -236,85 +533,770 @@ PyObject* __wxSetDictionary(PyObject* /* self */, PyObject* args) #define wxPlatform "__WXMAC__" #endif - PyDict_SetItemString(wxPython_dict, "wxPlatform", PyString_FromString(wxPlatform)); +#ifdef __WXDEBUG__ + int wxdebug = 1; +#else + int wxdebug = 0; +#endif + + PyDict_SetItemString(wxPython_dict, "Platform", PyString_FromString(wxPlatform)); + PyDict_SetItemString(wxPython_dict, "USE_UNICODE", PyInt_FromLong(wxUSE_UNICODE)); + PyDict_SetItemString(wxPython_dict, "__WXDEBUG__", PyInt_FromLong(wxdebug)); + + RETURN_NONE(); +} + + +//--------------------------------------------------------------------------- - Py_INCREF(Py_None); - return Py_None; +// Python's PyInstance_Check does not return True for instances of new-style +// classes. This should get close enough for both new and old classes but I +// should re-evaluate the need for doing instance checks... +bool wxPyInstance_Check(PyObject* obj) { + return PyObject_HasAttrString(obj, "__class__") != 0; } +// This one checks if the object is an instance of a SWIG proxy class (it has +// a .this attribute) +bool wxPySwigInstance_Check(PyObject* obj) { + return PyObject_HasAttrString(obj, "this") != 0; +} + //--------------------------------------------------------------------------- -PyObject* wxPyConstructObject(void* ptr, - const char* className, - int setThisOwn) { - char buff[64]; // should always be big enough... - char swigptr[64]; +// The stock objects are no longer created when the wxc module is imported, +// but only after the app object has been created. The +// wxPy_ReinitStockObjects function will be called 3 times to pass the stock +// objects though various stages of evolution: +// +// pass 1: Set all the pointers to a non-NULL value so the Python proxy +// object will be created (otherwise it will just use None.) +// +// pass 2: After the module has been imported and the python proxys have +// been created, then set the __class__ to be _wxPyUnbornObject so +// it will catch any access to the object and will raise an exception. +// +// pass 3: Finally, from OnInit patch things up so the stock objects can +// be used. + - sprintf(buff, "_%s_p", className); - SWIG_MakePtr(swigptr, ptr, buff); +PyObject* __wxPyFixStockObjects(PyObject* /* self */, PyObject* args) +{ + wxPy_ReinitStockObjects(2); + RETURN_NONE(); +} - sprintf(buff, "%sPtr", className); - PyObject* classobj = PyDict_GetItemString(wxPython_dict, buff); - if (! classobj) { - Py_INCREF(Py_None); - return Py_None; + +static void rsoPass2(const char* name) +{ + static PyObject* unbornObjectClass = NULL; + PyObject* obj; + + if (unbornObjectClass == NULL) { + unbornObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyUnbornObject"); + Py_INCREF(unbornObjectClass); } - PyObject* arg = Py_BuildValue("(s)", swigptr); - PyObject* obj = PyInstance_New(classobj, arg, NULL); - Py_DECREF(arg); + // Find the object instance + obj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(name)); + wxCHECK_RET(obj != NULL, wxT("Unable to find stock object")); + wxCHECK_RET(wxPySwigInstance_Check(obj), wxT("Not a swig instance")); + + // Change its class + PyObject_SetAttrString(obj, "__class__", unbornObjectClass); + +} + +static void rsoPass3(const char* name, const char* classname, void* ptr) +{ + PyObject* obj; + PyObject* classobj; + PyObject* ptrobj; + + // Find the object instance + obj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(name)); + wxCHECK_RET(obj != NULL, wxT("Unable to find stock object")); + wxCHECK_RET(wxPySwigInstance_Check(obj), wxT("Not a swig instance")); + + // Find the class object and put it back in the instance + classobj = PyDict_GetItemString(wxPython_dict, (char*)dropwx(classname)); + wxCHECK_RET(classobj != NULL, wxT("Unable to find stock class object")); + PyObject_SetAttrString(obj, "__class__", classobj); + + // Rebuild the .this swigified pointer with the new value of the C++ pointer + ptrobj = wxPyMakeSwigPtr(ptr, wxString(classname, *wxConvCurrent)); + PyObject_SetAttrString(obj, "this", ptrobj); + Py_DECREF(ptrobj); +} + + + +void wxPy_ReinitStockObjects(int pass) +{ - if (setThisOwn) { - PyObject_SetAttrString(obj, "thisown", PyInt_FromLong(1)); +#define REINITOBJ(name, classname) \ + if (pass == 1) { name = (classname*)0xC0C0C0C0; } \ + else if (pass == 2) { rsoPass2(#name); } \ + else if (pass == 3) { rsoPass3(#name, #classname, (void*)name); } + + +#define REINITOBJ2(name, classname) \ + if (pass == 1) { } \ + else if (pass == 2) { rsoPass2(#name); } \ + else if (pass == 3) { rsoPass3(#name, #classname, (void*)&name); } + + + REINITOBJ(wxNORMAL_FONT, wxFont); + REINITOBJ(wxSMALL_FONT, wxFont); + REINITOBJ(wxITALIC_FONT, wxFont); + REINITOBJ(wxSWISS_FONT, wxFont); + + REINITOBJ(wxRED_PEN, wxPen); + REINITOBJ(wxCYAN_PEN, wxPen); + REINITOBJ(wxGREEN_PEN, wxPen); + REINITOBJ(wxBLACK_PEN, wxPen); + REINITOBJ(wxWHITE_PEN, wxPen); + REINITOBJ(wxTRANSPARENT_PEN, wxPen); + REINITOBJ(wxBLACK_DASHED_PEN, wxPen); + REINITOBJ(wxGREY_PEN, wxPen); + REINITOBJ(wxMEDIUM_GREY_PEN, wxPen); + REINITOBJ(wxLIGHT_GREY_PEN, wxPen); + + REINITOBJ(wxBLUE_BRUSH, wxBrush); + REINITOBJ(wxGREEN_BRUSH, wxBrush); + REINITOBJ(wxWHITE_BRUSH, wxBrush); + REINITOBJ(wxBLACK_BRUSH, wxBrush); + REINITOBJ(wxTRANSPARENT_BRUSH, wxBrush); + REINITOBJ(wxCYAN_BRUSH, wxBrush); + REINITOBJ(wxRED_BRUSH, wxBrush); + REINITOBJ(wxGREY_BRUSH, wxBrush); + REINITOBJ(wxMEDIUM_GREY_BRUSH, wxBrush); + REINITOBJ(wxLIGHT_GREY_BRUSH, wxBrush); + + REINITOBJ(wxBLACK, wxColour); + REINITOBJ(wxWHITE, wxColour); + REINITOBJ(wxRED, wxColour); + REINITOBJ(wxBLUE, wxColour); + REINITOBJ(wxGREEN, wxColour); + REINITOBJ(wxCYAN, wxColour); + REINITOBJ(wxLIGHT_GREY, wxColour); + + REINITOBJ(wxSTANDARD_CURSOR, wxCursor); + REINITOBJ(wxHOURGLASS_CURSOR, wxCursor); + REINITOBJ(wxCROSS_CURSOR, wxCursor); + + REINITOBJ2(wxNullBitmap, wxBitmap); + REINITOBJ2(wxNullIcon, wxIcon); + REINITOBJ2(wxNullCursor, wxCursor); + REINITOBJ2(wxNullPen, wxPen); + REINITOBJ2(wxNullBrush, wxBrush); + REINITOBJ2(wxNullPalette, wxPalette); + REINITOBJ2(wxNullFont, wxFont); + REINITOBJ2(wxNullColour, wxColour); + + REINITOBJ(wxTheFontList, wxFontList); + REINITOBJ(wxThePenList, wxPenList); + REINITOBJ(wxTheBrushList, wxBrushList); + REINITOBJ(wxTheColourDatabase, wxColourDatabase); + + + REINITOBJ(wxTheClipboard, wxClipboard); + REINITOBJ2(wxDefaultValidator, wxValidator); + REINITOBJ2(wxNullImage, wxImage); + REINITOBJ2(wxNullAcceleratorTable, wxAcceleratorTable); + +#undef REINITOBJ +#undef REINITOBJ2 +} + +//--------------------------------------------------------------------------- + +void wxPyClientData_dtor(wxPyClientData* self) { + if (! wxPyDoingCleanup) { // Don't do it during cleanup as Python + // may have already garbage collected the object... + wxPyBeginBlockThreads(); + Py_DECREF(self->m_obj); + self->m_obj = NULL; + wxPyEndBlockThreads(); + } +} + +void wxPyUserData_dtor(wxPyUserData* self) { + if (! wxPyDoingCleanup) { + wxPyBeginBlockThreads(); + Py_DECREF(self->m_obj); + self->m_obj = NULL; + wxPyEndBlockThreads(); } +} - return obj; + +// This is called when an OOR controled object is being destroyed. Although +// the C++ object is going away there is no way to force the Python object +// (and all references to it) to die too. This causes problems (crashes) in +// wxPython when a python shadow object attempts to call a C++ method using +// the now bogus pointer... So to try and prevent this we'll do a little black +// magic and change the class of the python instance to a class that will +// raise an exception for any attempt to call methods with it. See +// _wxPyDeadObject in _core_ex.py for the implementation of this class. +void wxPyOORClientData_dtor(wxPyOORClientData* self) { + + static PyObject* deadObjectClass = NULL; + + wxPyBeginBlockThreads(); + if (deadObjectClass == NULL) { + deadObjectClass = PyDict_GetItemString(wxPython_dict, "_wxPyDeadObject"); + // TODO: Can not wxASSERT here because inside a wxPyBeginBlock Threads, + // will lead to a deadlock when it tries to aquire the GIL again. + //wxASSERT_MSG(deadObjectClass != NULL, wxT("Can't get _wxPyDeadObject class!")); + Py_INCREF(deadObjectClass); + } + + + // Only if there is more than one reference to the object + if ( !wxPyDoingCleanup && self->m_obj->ob_refcnt > 1 ) { + // bool isInstance = wxPyInstance_Check(self->m_obj); + // TODO same here + //wxASSERT_MSG(isInstance, wxT("m_obj not an instance!?!?!")); + + // Call __del__, if there is one. + PyObject* func = PyObject_GetAttrString(self->m_obj, "__del__"); + if (func) { + PyObject* rv = PyObject_CallMethod(self->m_obj, "__del__", NULL); + Py_XDECREF(rv); + Py_DECREF(func); + } + if (PyErr_Occurred()) + PyErr_Clear(); // just ignore it for now + + + PyObject* dict = PyObject_GetAttrString(self->m_obj, "__dict__"); + if (dict) { + // Clear the instance's dictionary + PyDict_Clear(dict); + + // put the name of the old class into the instance, and then reset the + // class to be the dead class. + PyObject* klass = PyObject_GetAttrString(self->m_obj, "__class__"); + PyObject* name = PyObject_GetAttrString(klass, "__name__"); + PyDict_SetItemString(dict, "_name", name); + PyObject_SetAttrString(self->m_obj, "__class__", deadObjectClass); + //Py_INCREF(deadObjectClass); + Py_DECREF(klass); + Py_DECREF(name); + } + } + + // m_obj is DECREF'd in the base class dtor... + wxPyEndBlockThreads(); } + //--------------------------------------------------------------------------- +// Stuff used by OOR to find the right wxPython class type to return and to +// build it. + + +// The pointer type map is used when the "pointer" type name generated by SWIG +// is not the same as the shadow class name, for example wxPyTreeCtrl +// vs. wxTreeCtrl. It needs to be referenced in Python as well as from C++, +// so we'll just make it a Python dictionary in the wx module's namespace. +// (See __wxSetDictionary) +void wxPyPtrTypeMap_Add(const char* commonName, const char* ptrName) { + if (! wxPyPtrTypeMap) + wxPyPtrTypeMap = PyDict_New(); + PyDict_SetItemString(wxPyPtrTypeMap, + (char*)commonName, + PyString_FromString((char*)ptrName)); +} + + + + +PyObject* wxPyMake_wxObject(wxObject* source, bool checkEvtHandler) { + PyObject* target = NULL; + bool isEvtHandler = False; + + if (source) { + // If it's derived from wxEvtHandler then there may + // already be a pointer to a Python object that we can use + // in the OOR data. + if (checkEvtHandler && wxIsKindOf(source, wxEvtHandler)) { + isEvtHandler = True; + wxEvtHandler* eh = (wxEvtHandler*)source; + wxPyOORClientData* data = (wxPyOORClientData*)eh->GetClientObject(); + if (data) { + target = data->m_obj; + if (target) + Py_INCREF(target); + } + } + + if (! target) { + // Otherwise make it the old fashioned way by making a new shadow + // object and putting this pointer in it. Look up the class + // heirarchy until we find a class name that is located in the + // python module. + const wxClassInfo* info = source->GetClassInfo(); + wxString name = info->GetClassName(); + bool exists = wxPyCheckSwigType(name); + while (info && !exists) { + info = info->GetBaseClass1(); + name = info->GetClassName(); + exists = wxPyCheckSwigType(name); + } + if (info) { + target = wxPyConstructObject((void*)source, name, False); + if (target && isEvtHandler) + ((wxEvtHandler*)source)->SetClientObject(new wxPyOORClientData(target)); + } else { + wxString msg(wxT("wxPython class not found for ")); + msg += source->GetClassInfo()->GetClassName(); + PyErr_SetString(PyExc_NameError, msg.mbc_str()); + target = NULL; + } + } + } else { // source was NULL so return None. + Py_INCREF(Py_None); target = Py_None; + } + return target; +} + -static unsigned int _wxPyNestCount = 0; +PyObject* wxPyMake_wxSizer(wxSizer* source) { + PyObject* target = NULL; -static PyThreadState* myPyThreadState_Get() { - PyThreadState* current; - current = PyThreadState_Swap(NULL); - PyThreadState_Swap(current); - return current; + if (source && wxIsKindOf(source, wxSizer)) { + // If it's derived from wxSizer then there may already be a pointer to + // a Python object that we can use in the OOR data. + wxSizer* sz = (wxSizer*)source; + wxPyOORClientData* data = (wxPyOORClientData*)sz->GetClientObject(); + if (data) { + target = data->m_obj; + if (target) + Py_INCREF(target); + } + } + if (! target) { + target = wxPyMake_wxObject(source, False); + if (target != Py_None) + ((wxSizer*)source)->SetClientObject(new wxPyOORClientData(target)); + } + return target; } -HELPEREXPORT bool wxPyRestoreThread() { - // NOTE: The Python API docs state that if a thread already has the - // interpreter lock and calls PyEval_RestoreThread again a deadlock - // occurs, so I put in this code as a guard condition since there are - // many possibilites for nested events and callbacks in wxPython. If - // The current thread is our thread, then we can assume that we - // already have the lock. (I hope!) - // +//--------------------------------------------------------------------------- + + #ifdef WXP_WITH_THREAD - _wxPyNestCount += 1; - if (wxPyEventThreadState != myPyThreadState_Get()) { - PyEval_RestoreThread(wxPyEventThreadState); - return TRUE; +inline +unsigned long wxPyGetCurrentThreadId() { + return wxThread::GetCurrentId(); +} + +static wxPyThreadState gs_shutdownTState; + +static +wxPyThreadState* wxPyGetThreadState() { + if (wxPyTMutex == NULL) // Python is shutting down... + return &gs_shutdownTState; + + unsigned long ctid = wxPyGetCurrentThreadId(); + wxPyThreadState* tstate = NULL; + + wxPyTMutex->Lock(); + for(size_t i=0; i < wxPyTStates->GetCount(); i++) { + wxPyThreadState& info = wxPyTStates->Item(i); + if (info.tid == ctid) { + tstate = &info; + break; + } } - else + wxPyTMutex->Unlock(); + wxASSERT_MSG(tstate, wxT("PyThreadState should not be NULL!")); + return tstate; +} + + +static +void wxPySaveThreadState(PyThreadState* tstate) { + if (wxPyTMutex == NULL) { // Python is shutting down, assume a single thread... + gs_shutdownTState.tstate = tstate; + return; + } + unsigned long ctid = wxPyGetCurrentThreadId(); + wxPyTMutex->Lock(); + for(size_t i=0; i < wxPyTStates->GetCount(); i++) { + wxPyThreadState& info = wxPyTStates->Item(i); + if (info.tid == ctid) { +#if 0 + if (info.tstate != tstate) + wxLogMessage("*** tstate mismatch!???"); #endif - return FALSE; + // info.tstate = tstate; *** DO NOT update existing ones??? + // Normally it will never change, but apparently COM callbacks + // (i.e. ActiveX controls) will (incorrectly IMHO) use a transient + // tstate which will then be garbage the next time we try to use + // it... + wxPyTMutex->Unlock(); + return; + } + } + // not found, so add it... + wxPyTStates->Add(new wxPyThreadState(ctid, tstate)); + wxPyTMutex->Unlock(); } +#endif + + + +// Calls from Python to wxWindows code are wrapped in calls to these +// functions: + +PyThreadState* wxPyBeginAllowThreads() { +#ifdef WXP_WITH_THREAD + PyThreadState* saved = PyEval_SaveThread(); // Py_BEGIN_ALLOW_THREADS; + wxPySaveThreadState(saved); + wxPyGetThreadState()->blocked -= 1; + return saved; +#else + return NULL; +#endif +} + +void wxPyEndAllowThreads(PyThreadState* saved) { +#ifdef WXP_WITH_THREAD + wxPyGetThreadState()->blocked += 1; + PyEval_RestoreThread(saved); // Py_END_ALLOW_THREADS; +#endif +} + + -HELPEREXPORT void wxPySaveThread(bool doSave) { +// Calls from wxWindows back to Python code, or even any PyObject +// manipulations, PyDECREF's and etc. are wrapped in calls to these functions: + +void wxPyBeginBlockThreads() { #ifdef WXP_WITH_THREAD - if (doSave) { - wxPyEventThreadState = PyEval_SaveThread(); + wxPyThreadState* tstate = wxPyGetThreadState(); + if (tstate->blocked++ == 0) { // if nested calls then do nothing + PyEval_RestoreThread(tstate->tstate); } - _wxPyNestCount -= 1; #endif } + +void wxPyEndBlockThreads() { +#ifdef WXP_WITH_THREAD + wxPyThreadState* tstate = wxPyGetThreadState(); + tstate->blocked -= 1; + if ( tstate->blocked == 0) { // if nested calls then do nothing + PyEval_SaveThread(); + } +#endif +} + + //--------------------------------------------------------------------------- +// wxPyInputStream and wxPyCBInputStream methods + + +void wxPyInputStream::close() { + /* do nothing for now */ +} + +void wxPyInputStream::flush() { + /* do nothing for now */ +} + +bool wxPyInputStream::eof() { + if (m_wxis) + return m_wxis->Eof(); + else + return True; +} + +wxPyInputStream::~wxPyInputStream() { + /* do nothing */ +} + + + + +PyObject* wxPyInputStream::read(int size) { + PyObject* obj = NULL; + wxMemoryBuffer buf; + const int BUFSIZE = 1024; + + // check if we have a real wxInputStream to work with + if (!m_wxis) { + wxPyBeginBlockThreads(); + PyErr_SetString(PyExc_IOError, "no valid C-wxInputStream"); + wxPyEndBlockThreads(); + return NULL; + } + + if (size < 0) { + // read while bytes are available on the stream + while ( m_wxis->CanRead() ) { + m_wxis->Read(buf.GetAppendBuf(BUFSIZE), BUFSIZE); + buf.UngetAppendBuf(m_wxis->LastRead()); + } + + } else { // Read only size number of characters + m_wxis->Read(buf.GetWriteBuf(size), size); + buf.UngetWriteBuf(m_wxis->LastRead()); + } + + // error check + wxPyBeginBlockThreads(); + wxStreamError err = m_wxis->GetLastError(); + if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) { + PyErr_SetString(PyExc_IOError,"IOError in wxInputStream"); + } + else { + // We use only strings for the streams, not unicode + obj = PyString_FromStringAndSize(buf, buf.GetDataLen()); + } + wxPyEndBlockThreads(); + return obj; +} + + +PyObject* wxPyInputStream::readline(int size) { + PyObject* obj = NULL; + wxMemoryBuffer buf; + int i; + char ch; + + // check if we have a real wxInputStream to work with + if (!m_wxis) { + wxPyBeginBlockThreads(); + PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream"); + wxPyEndBlockThreads(); + return NULL; + } + + // read until \n or byte limit reached + for (i=ch=0; (ch != '\n') && (m_wxis->CanRead()) && ((size < 0) || (i < size)); i++) { + ch = m_wxis->GetC(); + buf.AppendByte(ch); + } + + // errorcheck + wxPyBeginBlockThreads(); + wxStreamError err = m_wxis->GetLastError(); + if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) { + PyErr_SetString(PyExc_IOError,"IOError in wxInputStream"); + } + else { + // We use only strings for the streams, not unicode + obj = PyString_FromStringAndSize((char*)buf.GetData(), buf.GetDataLen()); + } + wxPyEndBlockThreads(); + return obj; +} + + +PyObject* wxPyInputStream::readlines(int sizehint) { + PyObject* pylist; + + // check if we have a real wxInputStream to work with + if (!m_wxis) { + wxPyBeginBlockThreads(); + PyErr_SetString(PyExc_IOError,"no valid C-wxInputStream"); + wxPyEndBlockThreads(); + return NULL; + } + + // init list + wxPyBeginBlockThreads(); + pylist = PyList_New(0); + if (!pylist) { + wxPyBeginBlockThreads(); + PyErr_NoMemory(); + wxPyEndBlockThreads(); + return NULL; + } + + // read sizehint bytes or until EOF + int i; + for (i=0; (m_wxis->CanRead()) && ((sizehint < 0) || (i < sizehint));) { + PyObject* s = this->readline(); + if (s == NULL) { + wxPyBeginBlockThreads(); + Py_DECREF(pylist); + wxPyEndBlockThreads(); + return NULL; + } + wxPyBeginBlockThreads(); + PyList_Append(pylist, s); + i += PyString_Size(s); + wxPyEndBlockThreads(); + } + + // error check + wxStreamError err = m_wxis->GetLastError(); + if (err != wxSTREAM_NO_ERROR && err != wxSTREAM_EOF) { + wxPyBeginBlockThreads(); + Py_DECREF(pylist); + PyErr_SetString(PyExc_IOError,"IOError in wxInputStream"); + wxPyEndBlockThreads(); + return NULL; + } + + return pylist; +} + + +void wxPyInputStream::seek(int offset, int whence) { + if (m_wxis) + m_wxis->SeekI(offset, wxSeekMode(whence)); +} + +int wxPyInputStream::tell(){ + if (m_wxis) + return m_wxis->TellI(); + else return 0; +} + + + + +wxPyCBInputStream::wxPyCBInputStream(PyObject *r, PyObject *s, PyObject *t, bool block) + : wxInputStream(), m_read(r), m_seek(s), m_tell(t), m_block(block) +{} + + +wxPyCBInputStream::~wxPyCBInputStream() { + if (m_block) wxPyBeginBlockThreads(); + Py_XDECREF(m_read); + Py_XDECREF(m_seek); + Py_XDECREF(m_tell); + if (m_block) wxPyEndBlockThreads(); +} + + +wxPyCBInputStream* wxPyCBInputStream::create(PyObject *py, bool block) { + if (block) wxPyBeginBlockThreads(); + + PyObject* read = getMethod(py, "read"); + PyObject* seek = getMethod(py, "seek"); + PyObject* tell = getMethod(py, "tell"); + + if (!read) { + PyErr_SetString(PyExc_TypeError, "Not a file-like object"); + Py_XDECREF(read); + Py_XDECREF(seek); + Py_XDECREF(tell); + if (block) wxPyEndBlockThreads(); + return NULL; + } + + if (block) wxPyEndBlockThreads(); + return new wxPyCBInputStream(read, seek, tell, block); +} + + +wxPyCBInputStream* wxPyCBInputStream_create(PyObject *py, bool block) { + return wxPyCBInputStream::create(py, block); +} + +PyObject* wxPyCBInputStream::getMethod(PyObject* py, char* name) { + if (!PyObject_HasAttrString(py, name)) + return NULL; + PyObject* o = PyObject_GetAttrString(py, name); + if (!PyMethod_Check(o) && !PyCFunction_Check(o)) { + Py_DECREF(o); + return NULL; + } + return o; +} + + +size_t wxPyCBInputStream::GetSize() const { + wxPyCBInputStream* self = (wxPyCBInputStream*)this; // cast off const + if (m_seek && m_tell) { + off_t temp = self->OnSysTell(); + off_t ret = self->OnSysSeek(0, wxFromEnd); + self->OnSysSeek(temp, wxFromStart); + return ret; + } + else + return 0; +} + + +size_t wxPyCBInputStream::OnSysRead(void *buffer, size_t bufsize) { + if (bufsize == 0) + return 0; + + wxPyBeginBlockThreads(); + PyObject* arglist = Py_BuildValue("(i)", bufsize); + PyObject* result = PyEval_CallObject(m_read, arglist); + Py_DECREF(arglist); + + size_t o = 0; + if ((result != NULL) && PyString_Check(result)) { + o = PyString_Size(result); + if (o == 0) + m_lasterror = wxSTREAM_EOF; + if (o > bufsize) + o = bufsize; + memcpy((char*)buffer, PyString_AsString(result), o); // strings only, not unicode... + Py_DECREF(result); + + } + else + m_lasterror = wxSTREAM_READ_ERROR; + wxPyEndBlockThreads(); + return o; +} + +size_t wxPyCBInputStream::OnSysWrite(const void *buffer, size_t bufsize) { + m_lasterror = wxSTREAM_WRITE_ERROR; + return 0; +} + +off_t wxPyCBInputStream::OnSysSeek(off_t off, wxSeekMode mode) { + wxPyBeginBlockThreads(); +#ifdef _LARGE_FILES + // off_t is a 64-bit value... + PyObject* arglist = Py_BuildValue("(Li)", off, mode); +#else + PyObject* arglist = Py_BuildValue("(ii)", off, mode); +#endif + PyObject* result = PyEval_CallObject(m_seek, arglist); + Py_DECREF(arglist); + Py_XDECREF(result); + wxPyEndBlockThreads(); + return OnSysTell(); +} + + +off_t wxPyCBInputStream::OnSysTell() const { + wxPyBeginBlockThreads(); + PyObject* arglist = Py_BuildValue("()"); + PyObject* result = PyEval_CallObject(m_tell, arglist); + Py_DECREF(arglist); + off_t o = 0; + if (result != NULL) { +#ifdef _LARGE_FILES + if (PyLong_Check(result)) + o = PyLong_AsLongLong(result); + else +#endif + o = PyInt_AsLong(result); + Py_DECREF(result); + }; + wxPyEndBlockThreads(); + return o; +} +//---------------------------------------------------------------------- IMPLEMENT_ABSTRACT_CLASS(wxPyCallback, wxObject); @@ -329,9 +1311,9 @@ wxPyCallback::wxPyCallback(const wxPyCallback& other) { } wxPyCallback::~wxPyCallback() { - bool doSave = wxPyRestoreThread(); + wxPyBeginBlockThreads(); Py_DECREF(m_func); - wxPySaveThread(doSave); + wxPyEndBlockThreads(); } @@ -343,51 +1325,59 @@ void wxPyCallback::EventThunker(wxEvent& event) { PyObject* result; PyObject* arg; PyObject* tuple; + bool checkSkip = False; - - bool doSave = wxPyRestoreThread(); + wxPyBeginBlockThreads(); wxString className = event.GetClassInfo()->GetClassName(); - if (className == "wxPyEvent") - arg = ((wxPyEvent*)&event)->GetSelf(); - else if (className == "wxPyCommandEvent") - arg = ((wxPyCommandEvent*)&event)->GetSelf(); - else + // If the event is one of these types then pass the original + // event object instead of the one passed to us. + if ( className == wxT("wxPyEvent") ) { + arg = ((wxPyEvent*)&event)->GetSelf(); + checkSkip = ((wxPyEvent*)&event)->GetCloned(); + } + else if ( className == wxT("wxPyCommandEvent") ) { + arg = ((wxPyCommandEvent*)&event)->GetSelf(); + checkSkip = ((wxPyCommandEvent*)&event)->GetCloned(); + } + else { arg = wxPyConstructObject((void*)&event, className); + } - tuple = PyTuple_New(1); - PyTuple_SET_ITEM(tuple, 0, arg); - result = PyEval_CallObject(func, tuple); - Py_DECREF(tuple); - if (result) { - Py_DECREF(result); - PyErr_Clear(); - } else { + if (!arg) { PyErr_Print(); + } else { + // Call the event handler, passing the event object + tuple = PyTuple_New(1); + PyTuple_SET_ITEM(tuple, 0, arg); // steals ref to arg + result = PyEval_CallObject(func, tuple); + if ( result ) { + Py_DECREF(result); // result is ignored, but we still need to decref it + PyErr_Clear(); // Just in case... + } else { + PyErr_Print(); + } + + if ( checkSkip ) { + // if the event object was one of our special types and + // it had been cloned, then we need to extract the Skipped + // value from the original and set it in the clone. + result = PyObject_CallMethod(arg, "GetSkipped", ""); + if ( result ) { + event.Skip(PyInt_AsLong(result)); + Py_DECREF(result); + } else { + PyErr_Print(); + } + } + Py_DECREF(tuple); } - wxPySaveThread(doSave); + wxPyEndBlockThreads(); } //---------------------------------------------------------------------- -wxPyCallbackHelper::wxPyCallbackHelper() { - m_class = NULL; - m_self = NULL; - m_lastFound = NULL; - m_incRef = FALSE; -} - - -wxPyCallbackHelper::~wxPyCallbackHelper() { - bool doSave = wxPyRestoreThread(); - if (m_incRef) { - Py_XDECREF(m_self); - Py_XDECREF(m_class); - } - wxPySaveThread(doSave); -} - wxPyCallbackHelper::wxPyCallbackHelper(const wxPyCallbackHelper& other) { m_lastFound = NULL; m_self = other.m_self; @@ -399,9 +1389,9 @@ wxPyCallbackHelper::wxPyCallbackHelper(const wxPyCallbackHelper& other) { } -void wxPyCallbackHelper::setSelf(PyObject* self, PyObject* _class, int incref) { +void wxPyCallbackHelper::setSelf(PyObject* self, PyObject* klass, int incref) { m_self = self; - m_class = _class; + m_class = klass; m_incRef = incref; if (incref) { Py_INCREF(m_self); @@ -410,22 +1400,106 @@ void wxPyCallbackHelper::setSelf(PyObject* self, PyObject* _class, int incref) { } -// If the object (m_self) has an attibute of the given name, and if that -// attribute is a method, and if that method's class is not from a base class, -// then we'll save a pointer to the method so callCallback can call it. -bool wxPyCallbackHelper::findCallback(const wxString& name) const { +#if PYTHON_API_VERSION >= 1011 + +// Prior to Python 2.2 PyMethod_GetClass returned the class object +// in which the method was defined. Starting with 2.2 it returns +// "class that asked for the method" which seems totally bogus to me +// but apprently it fixes some obscure problem waiting to happen in +// Python. Since the API was not documented Guido and the gang felt +// safe in changing it. Needless to say that totally screwed up the +// logic below in wxPyCallbackHelper::findCallback, hence this icky +// code to find the class where the method is actually defined... + +static +PyObject* PyFindClassWithAttr(PyObject *klass, PyObject *name) +{ + int i, n; + + if (PyType_Check(klass)) { // new style classes + // This code is borrowed/adapted from _PyType_Lookup in typeobject.c + PyTypeObject* type = (PyTypeObject*)klass; + PyObject *mro, *res, *base, *dict; + /* Look in tp_dict of types in MRO */ + mro = type->tp_mro; + assert(PyTuple_Check(mro)); + n = PyTuple_GET_SIZE(mro); + for (i = 0; i < n; i++) { + base = PyTuple_GET_ITEM(mro, i); + if (PyClass_Check(base)) + dict = ((PyClassObject *)base)->cl_dict; + else { + assert(PyType_Check(base)); + dict = ((PyTypeObject *)base)->tp_dict; + } + assert(dict && PyDict_Check(dict)); + res = PyDict_GetItem(dict, name); + if (res != NULL) + return base; + } + return NULL; + } + + else if (PyClass_Check(klass)) { // old style classes + // This code is borrowed/adapted from class_lookup in classobject.c + PyClassObject* cp = (PyClassObject*)klass; + PyObject *value = PyDict_GetItem(cp->cl_dict, name); + if (value != NULL) { + return (PyObject*)cp; + } + n = PyTuple_Size(cp->cl_bases); + for (i = 0; i < n; i++) { + PyObject* base = PyTuple_GetItem(cp->cl_bases, i); + PyObject *v = PyFindClassWithAttr(base, name); + if (v != NULL) + return v; + } + return NULL; + } + return NULL; +} +#endif + + +static +PyObject* PyMethod_GetDefiningClass(PyObject* method, const char* name) +{ + PyObject* mgc = PyMethod_GET_CLASS(method); + +#if PYTHON_API_VERSION <= 1010 // prior to Python 2.2, the easy way + return mgc; +#else // 2.2 and after, the hard way... + + PyObject* nameo = PyString_FromString(name); + PyObject* klass = PyFindClassWithAttr(mgc, nameo); + Py_DECREF(nameo); + return klass; +#endif +} + + + +bool wxPyCallbackHelper::findCallback(const char* name) const { wxPyCallbackHelper* self = (wxPyCallbackHelper*)this; // cast away const self->m_lastFound = NULL; - if (m_self && PyObject_HasAttrString(m_self, (char*)name.c_str())) { - PyObject* method; - method = PyObject_GetAttrString(m_self, (char*)name.c_str()); + // If the object (m_self) has an attibute of the given name... + if (m_self && PyObject_HasAttrString(m_self, (char*)name)) { + PyObject *method, *klass; + method = PyObject_GetAttrString(m_self, (char*)name); + + // ...and if that attribute is a method, and if that method's class is + // not from a base class... if (PyMethod_Check(method) && - ((PyMethod_GET_CLASS(method) == m_class) || - PyClass_IsSubclass(PyMethod_GET_CLASS(method), m_class))) { + (klass = PyMethod_GetDefiningClass(method, (char*)name)) != NULL && + ((klass == m_class) || PyObject_IsSubclass(klass, m_class))) { + // ...then we'll save a pointer to the method so callCallback can call it. self->m_lastFound = method; } + else { + Py_DECREF(method); + } } return m_lastFound != NULL; } @@ -433,7 +1507,7 @@ bool wxPyCallbackHelper::findCallback(const wxString& name) const { int wxPyCallbackHelper::callCallback(PyObject* argTuple) const { PyObject* result; - int retval = FALSE; + int retval = False; result = callCallbackObj(argTuple); if (result) { // Assumes an integer return type... @@ -445,12 +1519,18 @@ int wxPyCallbackHelper::callCallback(PyObject* argTuple) const { } // Invoke the Python callable object, returning the raw PyObject return -// value. Caller should DECREF the return value and also call PyEval_SaveThread. +// value. Caller should DECREF the return value and also manage the GIL. PyObject* wxPyCallbackHelper::callCallbackObj(PyObject* argTuple) const { - PyObject* result; + PyObject* result; + + // Save a copy of the pointer in case the callback generates another + // callback. In that case m_lastFound will have a different value when + // it gets back here... + PyObject* method = m_lastFound; - result = PyEval_CallObject(m_lastFound, argTuple); + result = PyEval_CallObject(method, argTuple); Py_DECREF(argTuple); + Py_DECREF(method); if (!result) { PyErr_Print(); } @@ -458,10 +1538,35 @@ PyObject* wxPyCallbackHelper::callCallbackObj(PyObject* argTuple) const { } +void wxPyCBH_setCallbackInfo(wxPyCallbackHelper& cbh, PyObject* self, PyObject* klass, int incref) { + cbh.setSelf(self, klass, incref); +} + +bool wxPyCBH_findCallback(const wxPyCallbackHelper& cbh, const char* name) { + return cbh.findCallback(name); +} + +int wxPyCBH_callCallback(const wxPyCallbackHelper& cbh, PyObject* argTuple) { + return cbh.callCallback(argTuple); +} + +PyObject* wxPyCBH_callCallbackObj(const wxPyCallbackHelper& cbh, PyObject* argTuple) { + return cbh.callCallbackObj(argTuple); +} + + +void wxPyCBH_delete(wxPyCallbackHelper* cbh) { + if (cbh->m_incRef) { + wxPyBeginBlockThreads(); + Py_XDECREF(cbh->m_self); + Py_XDECREF(cbh->m_class); + wxPyEndBlockThreads(); + } +} //--------------------------------------------------------------------------- //--------------------------------------------------------------------------- -// These classes can be derived from in Python and passed through the event +// These event classes can be derived from in Python and passed through the event // system without losing anything. They do this by keeping a reference to // themselves and some special case handling in wxPyCallback::EventThunker. @@ -469,26 +1574,26 @@ PyObject* wxPyCallbackHelper::callCallbackObj(PyObject* argTuple) const { wxPyEvtSelfRef::wxPyEvtSelfRef() { //m_self = Py_None; // **** We don't do normal ref counting to prevent //Py_INCREF(m_self); // circular loops... - m_cloned = FALSE; + m_cloned = False; } wxPyEvtSelfRef::~wxPyEvtSelfRef() { - bool doSave = wxPyRestoreThread(); + wxPyBeginBlockThreads(); if (m_cloned) Py_DECREF(m_self); - wxPySaveThread(doSave); + wxPyEndBlockThreads(); } void wxPyEvtSelfRef::SetSelf(PyObject* self, bool clone) { - bool doSave = wxPyRestoreThread(); + wxPyBeginBlockThreads(); if (m_cloned) Py_DECREF(m_self); m_self = self; if (clone) { Py_INCREF(m_self); - m_cloned = TRUE; + m_cloned = True; } - wxPySaveThread(doSave); + wxPyEndBlockThreads(); } PyObject* wxPyEvtSelfRef::GetSelf() const { @@ -497,93 +1602,65 @@ PyObject* wxPyEvtSelfRef::GetSelf() const { } -wxPyEvent::wxPyEvent(int id) - : wxEvent(id) { -} +IMPLEMENT_ABSTRACT_CLASS(wxPyEvent, wxEvent); +IMPLEMENT_ABSTRACT_CLASS(wxPyCommandEvent, wxCommandEvent); -wxPyEvent::~wxPyEvent() { + +wxPyEvent::wxPyEvent(int winid, wxEventType commandType) + : wxEvent(winid, commandType) { } -// This one is so the event object can be Cloned... -void wxPyEvent::CopyObject(wxObject& dest) const { - wxEvent::CopyObject(dest); - ((wxPyEvent*)&dest)->SetSelf(m_self, TRUE); + +wxPyEvent::wxPyEvent(const wxPyEvent& evt) + : wxEvent(evt) +{ + SetSelf(evt.m_self, True); } -IMPLEMENT_DYNAMIC_CLASS(wxPyEvent, wxEvent); +wxPyEvent::~wxPyEvent() { +} wxPyCommandEvent::wxPyCommandEvent(wxEventType commandType, int id) : wxCommandEvent(commandType, id) { } -wxPyCommandEvent::~wxPyCommandEvent() { -} -void wxPyCommandEvent::CopyObject(wxObject& dest) const { - wxCommandEvent::CopyObject(dest); - ((wxPyCommandEvent*)&dest)->SetSelf(m_self, TRUE); +wxPyCommandEvent::wxPyCommandEvent(const wxPyCommandEvent& evt) + : wxCommandEvent(evt) +{ + SetSelf(evt.m_self, True); } -IMPLEMENT_DYNAMIC_CLASS(wxPyCommandEvent, wxCommandEvent); - - - -//--------------------------------------------------------------------------- -//--------------------------------------------------------------------------- - - -wxPyTimer::wxPyTimer(PyObject* callback) { - func = callback; - Py_INCREF(func); -} - -wxPyTimer::~wxPyTimer() { - bool doSave = wxPyRestoreThread(); - Py_DECREF(func); - wxPySaveThread(doSave); +wxPyCommandEvent::~wxPyCommandEvent() { } -void wxPyTimer::Notify() { - bool doSave = wxPyRestoreThread(); - - PyObject* result; - PyObject* args = Py_BuildValue("()"); - result = PyEval_CallObject(func, args); - Py_DECREF(args); - if (result) { - Py_DECREF(result); - PyErr_Clear(); - } else { - PyErr_Print(); - } - wxPySaveThread(doSave); -} //--------------------------------------------------------------------------- //--------------------------------------------------------------------------- -// Convert a wxList to a Python List +// Convert a wxList to a Python List, only works for lists of wxObjects -PyObject* wxPy_ConvertList(wxListBase* list, const char* className) { +PyObject* wxPy_ConvertList(wxListBase* listbase) { + wxList* list = (wxList*)listbase; // this is probably bad... PyObject* pyList; PyObject* pyObj; wxObject* wxObj; - wxNode* node = list->First(); + wxNode* node = list->GetFirst(); - bool doSave = wxPyRestoreThread(); + wxPyBeginBlockThreads(); pyList = PyList_New(0); while (node) { - wxObj = node->Data(); - pyObj = wxPyConstructObject(wxObj, className); + wxObj = node->GetData(); + pyObj = wxPyMake_wxObject(wxObj); PyList_Append(pyList, pyObj); - node = node->Next(); + node = node->GetNext(); } - wxPySaveThread(doSave); + wxPyEndBlockThreads(); return pyList; } @@ -597,10 +1674,14 @@ long wxPyGetWinHandle(wxWindow* win) { // Find and return the actual X-Window. #ifdef __WXGTK__ if (win->m_wxwindow) { +#ifdef __WXGTK20__ + return (long) GDK_WINDOW_XWINDOW(GTK_PIZZA(win->m_wxwindow)->bin_window); +#else GdkWindowPrivate* bwin = (GdkWindowPrivate*)GTK_PIZZA(win->m_wxwindow)->bin_window; if (bwin) { return (long)bwin->xwindow; } +#endif } #endif return 0; @@ -608,7 +1689,117 @@ long wxPyGetWinHandle(wxWindow* win) { //---------------------------------------------------------------------- // Some helper functions for typemaps in my_typemaps.i, so they won't be -// included in every file... +// included in every file over and over again... + +#if PYTHON_API_VERSION >= 1009 + static char* wxStringErrorMsg = "String or Unicode type required"; +#else + static char* wxStringErrorMsg = "String type required"; +#endif + + +wxString* wxString_in_helper(PyObject* source) { + wxString* target; +#if PYTHON_API_VERSION >= 1009 // Have Python unicode API + if (!PyString_Check(source) && !PyUnicode_Check(source)) { + PyErr_SetString(PyExc_TypeError, wxStringErrorMsg); + return NULL; + } +#if wxUSE_UNICODE + if (PyUnicode_Check(source)) { + target = new wxString(); + size_t len = PyUnicode_GET_SIZE(source); + if (len) { + PyUnicode_AsWideChar((PyUnicodeObject*)source, target->GetWriteBuf(len), len); + target->UngetWriteBuf(); + } + } else { + // It is a string, get pointers to it and transform to unicode + char* tmpPtr; int tmpSize; + PyString_AsStringAndSize(source, &tmpPtr, &tmpSize); + target = new wxString(tmpPtr, *wxConvCurrent, tmpSize); + } +#else + char* tmpPtr; int tmpSize; + if (PyString_AsStringAndSize(source, &tmpPtr, &tmpSize) == -1) { + PyErr_SetString(PyExc_TypeError, "Unable to convert string"); + return NULL; + } + target = new wxString(tmpPtr, tmpSize); +#endif // wxUSE_UNICODE + +#else // No Python unicode API (1.5.2) + if (!PyString_Check(source)) { + PyErr_SetString(PyExc_TypeError, wxStringErrorMsg); + return NULL; + } + target = new wxString(PyString_AS_STRING(source), PyString_GET_SIZE(source)); +#endif + return target; +} + + +// Similar to above except doesn't use "new" and doesn't set an exception +wxString Py2wxString(PyObject* source) +{ + wxString target; + bool doDecRef = False; + +#if PYTHON_API_VERSION >= 1009 // Have Python unicode API + if (!PyString_Check(source) && !PyUnicode_Check(source)) { + // Convert to String if not one already... (TODO: Unicode too?) + source = PyObject_Str(source); + doDecRef = True; + } + +#if wxUSE_UNICODE + if (PyUnicode_Check(source)) { + size_t len = PyUnicode_GET_SIZE(source); + if (len) { + PyUnicode_AsWideChar((PyUnicodeObject*)source, target.GetWriteBuf(len), len); + target.UngetWriteBuf(); + } + } else { + // It is a string, get pointers to it and transform to unicode + char* tmpPtr; int tmpSize; + PyString_AsStringAndSize(source, &tmpPtr, &tmpSize); + target = wxString(tmpPtr, *wxConvCurrent, tmpSize); + } +#else + char* tmpPtr; int tmpSize; + PyString_AsStringAndSize(source, &tmpPtr, &tmpSize); + target = wxString(tmpPtr, tmpSize); +#endif // wxUSE_UNICODE + +#else // No Python unicode API (1.5.2) + if (!PyString_Check(source)) { + // Convert to String if not one already... + source = PyObject_Str(source); + doDecRef = True; + } + target = wxString(PyString_AS_STRING(source), PyString_GET_SIZE(source)); +#endif + + if (doDecRef) + Py_DECREF(source); + return target; +} + + +// Make either a Python String or Unicode object, depending on build mode +PyObject* wx2PyString(const wxString& src) +{ + PyObject* str; +#if wxUSE_UNICODE + str = PyUnicode_FromWideChar(src.c_str(), src.Len()); +#else + str = PyString_FromStringAndSize(src.c_str(), src.Len()); +#endif + return str; +} + + +//---------------------------------------------------------------------- byte* byte_LIST_helper(PyObject* source) { @@ -702,43 +1893,116 @@ char** string_LIST_helper(PyObject* source) { return temp; } +//-------------------------------- +// Part of patch from Tim Hochberg +static inline bool wxPointFromObjects(PyObject* o1, PyObject* o2, wxPoint* point) { + if (PyInt_Check(o1) && PyInt_Check(o2)) { + point->x = PyInt_AS_LONG(o1); + point->y = PyInt_AS_LONG(o2); + return True; + } + if (PyFloat_Check(o1) && PyFloat_Check(o2)) { + point->x = (int)PyFloat_AS_DOUBLE(o1); + point->y = (int)PyFloat_AS_DOUBLE(o2); + return True; + } + if (wxPySwigInstance_Check(o1) || wxPySwigInstance_Check(o2)) { // TODO: Why??? + // Disallow instances because they can cause havok + return False; + } + if (PyNumber_Check(o1) && PyNumber_Check(o2)) { + // I believe this excludes instances, so this should be safe without INCREFFing o1 and o2 + point->x = PyInt_AsLong(o1); + point->y = PyInt_AsLong(o2); + return True; + } + return False; +} + +wxPoint* wxPoint_LIST_helper(PyObject* source, int *count) { + // Putting all of the declarations here allows + // us to put the error handling all in one place. + int x; + wxPoint* temp; + PyObject *o, *o1, *o2; + bool isFast = PyList_Check(source) || PyTuple_Check(source); -wxPoint* wxPoint_LIST_helper(PyObject* source) { - if (!PyList_Check(source)) { - PyErr_SetString(PyExc_TypeError, "Expected a list object."); - return NULL; + if (!PySequence_Check(source)) { + goto error0; } - int count = PyList_Size(source); - wxPoint* temp = new wxPoint[count]; - if (! temp) { + + // The length of the sequence is returned in count. + *count = PySequence_Length(source); + if (*count < 0) { + goto error0; + } + + temp = new wxPoint[*count]; + if (!temp) { PyErr_SetString(PyExc_MemoryError, "Unable to allocate temporary array"); return NULL; } - for (int x=0; x= 1009 + if (! PyString_Check(o) && ! PyUnicode_Check(o)) { + PyErr_SetString(PyExc_TypeError, "Expected a list of string or unicode objects."); + return NULL; + } +#else if (! PyString_Check(o)) { PyErr_SetString(PyExc_TypeError, "Expected a list of strings."); return NULL; } - temp[x] = PyString_AsString(o); +#endif + + wxString* pStr = wxString_in_helper(o); + temp[x] = *pStr; + delete pStr; } return temp; } @@ -808,10 +2082,10 @@ wxAcceleratorEntry* wxAcceleratorEntry_LIST_helper(PyObject* source) { } for (int x=0; x